Public water system · MN1450006
ActiveMiddle River
At a glance
Middle River (PWSID MN1450006) is an active community water system in Marshall County, Minnesota. It reports serving 299 people through 143 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
299
Service connections
143
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Middle River compare with other water systems in Marshall County?
By EPA's size categories, Middle River is a very small system (500 people or fewer). Marshall County has 17 active public water systems. Its population served is about 36% below the county average of 467 people per system, and accounts for 3.8% of the 7,939 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active community water system reports serving 6,703 people, so Middle River is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Minnesota has 987 active community water systems, 15% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates Middle River?
EPA lists Middle River as owned by a local government. The MN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 12 of the 17 active systems in Marshall County (71%) are also owned by a local government.
Does Middle River have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between July 2009 and July 2025. By type: 4 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 5 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2020-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2015-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 5 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Middle River: frequently asked questions
Who runs Middle River?
Middle River (PWSID MN1450006) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Middle River serve?
Middle River reports serving 299 people through 143 service connections in Marshall County, Minnesota.
Where does Middle River get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Middle River have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Middle River's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Middle River's water quality report?
As a community water system, Middle River must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Marshall County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Marshall-Polk Rural Water System | Marshall | 3,295 | Community | Groundwater |
| Warren | Marshall | 1,551 | Community | Groundwater |
| Stephen | Marshall | 568 | Community | Purchased groundwater |
| Argyle | Marshall | 533 | Community | Groundwater |
| Alvarado | Marshall | 377 | Community | Purchased groundwater |
| Newfolden | Marshall | 338 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Middle River, PWSID MN1450006, Minnesota”, https://aquacensus.com/water-systems/minnesota/middle-river-mn1450006 (data as of October 1, 2026).